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Water system · PWSID 105300021

MCCOY LAKE

60
Fair
PurityRadar safety score

PWSID

105300021

State

Washington

City

WELLPINIT

Population served

325

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 60 Jun 18, 2026 · score 60

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

274

Violations on record

5

Unaddressed

7

Health-based

86

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2025. Official EPA record →

Treatment technique · EPA contaminant 0700 health-based began Jan 2025 Unaddressed
Treatment technique · EPA contaminant 0700 health-based began Jan 2025 Unaddressed
Treatment technique · EPA contaminant 0700 health-based began Jan 2025 Unaddressed
Treatment technique · EPA contaminant 0700 health-based began Jan 2025 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Other · EPA contaminant 7500 began Apr 2025 Resolved
Other · EPA contaminant 7500 began Mar 2025 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jan 2025 Resolved
Reporting · Lead & Copper Rule began Apr 2023 Resolved
Monitoring · Lead & Copper Rule began Jun 2022 Resolved
Reporting · Lead & Copper Rule began May 2022 Resolved
Monitoring · Lead & Copper Rule began Sep 2020 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Oct 2025
  • EPA/federal action · EIF Sep 2025
  • EPA/federal action · EOX Jul 2025
  • EPA/federal action · EOX Jul 2025
  • EPA/federal action · EOX Jul 2025
  • EPA/federal action · EOX Jan 2024
  • EPA/federal action · EOX May 2023
  • EPA/federal action · EOX Jul 2022

This profile is built from EPA public records for system 105300021 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.